2. xSellize
http://cydia.xsellize.com/
3. Sinful iPhone
http://sinfuliphonerepo.com/
(it appears that sinful is down at the moment but it is one of the best to have. Just keep checking on it from time to time.)
These are the ones I use. I will add more if needed or if I find any that I must have.
NOTE: Jail Break at your own risk, and add these repos at your own risk. I am not responsible if you hack your iPhone and you dont know what you are doing.
